diff --git a/include/osmocom/gsm/gsm_utils.h b/include/osmocom/gsm/gsm_utils.h
index cdbac87..308803d 100644
--- a/include/osmocom/gsm/gsm_utils.h
+++ b/include/osmocom/gsm/gsm_utils.h
@@ -69,7 +69,7 @@
 int ms_pwr_ctl_lvl(enum gsm_band band, unsigned int dbm);
 int ms_pwr_dbm(enum gsm_band band, uint8_t lvl);
 
-/* According to TS 08.05 Chapter 8.1.4 */
+/* According to TS 05.08 Chapter 8.1.4 */
 int rxlev2dbm(uint8_t rxlev);
 uint8_t dbm2rxlev(int dbm);
 
diff --git a/src/gsm/gsm_utils.c b/src/gsm/gsm_utils.c
index 5a2f012..9569cf3 100644
--- a/src/gsm/gsm_utils.c
+++ b/src/gsm/gsm_utils.c
@@ -401,7 +401,7 @@
 	return -EINVAL;
 }
 
-/* According to TS 08.05 Chapter 8.1.4 */
+/* According to TS 05.08 Chapter 8.1.4 */
 int rxlev2dbm(uint8_t rxlev)
 {
 	if (rxlev > 63)
@@ -410,7 +410,7 @@
 	return -110 + rxlev;
 }
 
-/* According to TS 08.05 Chapter 8.1.4 */
+/* According to TS 05.08 Chapter 8.1.4 */
 uint8_t dbm2rxlev(int dbm)
 {
 	int rxlev = dbm + 110;